Question Built in PP Stack V2 world position jittered in game view, working fine in scene view?!

Don't ask why, I want to draw topological height lines in post processing.
And it's somewhat working but only in the scene view, in the game view the lines are bouncing every time I move the camera and it's driving me nuts.

Of course I did read a couple of posts and it seems that this might have something to do with the depth texture jittering for TAA - but anti aliasing is disabled ..

Here is the C# part:

Code (CSharp):

1. using System;
2. using UnityEngine;
3. using UnityEngine.Rendering.PostProcessing;
4.  
5. [Serializable]
6. [PostProcess(typeof(HeightLinesPPFXRenderer), PostProcessEvent.BeforeTransparent, "Custom/HeightLinesPPFX")]
7. public sealed class HeightLinesPPFX : PostProcessEffectSettings
8. {
9.     [Range(0f, 1f), Tooltip("HeightLinesPPFX effect intensity.")]
10.     public FloatParameter blend = new FloatParameter { value = 0.5f };
11.     [Range(0f, 10f), Tooltip("HeightLinesPPFX thickness.")]
12.     public FloatParameter thickness = new FloatParameter { value = 0.5f };
13.     public ColorParameter color = new ColorParameter { value = Color.white };
14. }
15. public sealed class HeightLinesPPFXRenderer : PostProcessEffectRenderer<HeightLinesPPFX>
16. {
17.     public override DepthTextureMode GetCameraFlags()
18.     {
19.         return DepthTextureMode.Depth;
20.     }
21.  
22.     public override void Render(PostProcessRenderContext context)
23.     {
24.         var sheet = context.propertySheets.Get(Shader.Find("Hidden/Custom/HeightLinesPPFX"));
25.  
26.         sheet.properties.SetMatrix("_ViewProjectInverse", (context.camera.projectionMatrix * context.camera.worldToCameraMatrix).inverse);
27.         sheet.properties.SetFloat("_LineThickness", settings.thickness);
28.         sheet.properties.SetColor("_LineColor", settings.color);
29.  
30.         context.command.BlitFullscreenTriangle(context.source, context.destination, sheet, 0);
31.     }
32. }
33.  

And there goes the shader:

Code (CSharp):

1. Shader "Hidden/Custom/HeightLinesPPFX"
2. {
3.     HLSLINCLUDE
4.         #include "Packages/com.unity.postprocessing/PostProcessing/Shaders/StdLib.hlsl"
5.  
6.         TEXTURE2D_SAMPLER2D(_MainTex, sampler_MainTex);
7.         TEXTURE2D_SAMPLER2D(_CameraDepthTexture, sampler_CameraDepthTexture);
8.  
9.         float4x4 UNITY_MATRIX_MVP;
10.         float4x4 _ViewProjectInverse;
11.  
12.         float _LineThickness;
13.         float3 _LineColor;
14.      
15.         struct FragInput
16.         {
17.             float4 vertex    : SV_Position;
18.             float2 texcoord  : TEXCOORD0;
19.             float3 cameraDir : TEXCOORD1;
20.         };
21.  
22.         FragInput VertMain(AttributesDefault v)
23.         {
24.             FragInput o;
25.          
26.             o.vertex   = mul(UNITY_MATRIX_MVP, float4(v.vertex.xyz, 1.0));
27.             o.texcoord = TransformTriangleVertexToUV(v.vertex.xy);
28.  
29. #if UNITY_UV_STARTS_AT_TOP
30.             o.texcoord = o.texcoord * float2(1.0, -1.0) + float2(0.0, 1.0);
31. #endif
32.  
33.             float4 cameraLocalDir = mul(_ViewProjectInverse, float4(o.texcoord.x * 2.0 - 1.0, o.texcoord.y * 2.0 - 1.0, 0.5, 1.0));
34.             cameraLocalDir.xyz /= cameraLocalDir.w;
35.             cameraLocalDir.xyz -= _WorldSpaceCameraPos;
36.  
37.             float4 cameraForwardDir = mul(_ViewProjectInverse, float4(0.0, 0.0, 0.5, 1.0));
38.             cameraForwardDir.xyz /= cameraForwardDir.w;
39.             cameraForwardDir.xyz -= _WorldSpaceCameraPos;
40.  
41.             o.cameraDir = cameraLocalDir.xyz / length(cameraForwardDir.xyz);
42.          
43.             return o;
44.         }
45.  
46.         float4 FragMain(FragInput i) : SV_Target
47.         {
48.             float3 sceneColor  = SAMPLE_TEXTURE2D(_MainTex, sampler_MainTex, i.texcoord).rgb;
49.             float  sceneDepth  = SAMPLE_TEXTURE2D(_CameraDepthTexture, sampler_CameraDepthTexture, i.texcoord).r;
50.  
51.             float depth01 = Linear01Depth(sceneDepth);
52.             float linearDepth = LinearEyeDepth(sceneDepth);
53.             float3 worldPosition = (i.cameraDir * linearDepth) + _WorldSpaceCameraPos;
54.          
55.  
56.             float isLine = float(abs(fmod(worldPosition.y, 10)) < _LineThickness && sceneDepth > 0.0);
57.             sceneColor = lerp(sceneColor, _LineColor, isLine);
58.  
59.             //sceneColor = float3(1-depth01, 0, 0);
60.  
61.             return float4(sceneColor, 1.0);
62.         }
63.  
64.  
65.     ENDHLSL
66.  
67.     SubShader
68.     {
69.         Cull Off ZWrite Off ZTest Always
70.  
71.         Pass
72.         {
73.             HLSLPROGRAM
74.                 #pragma vertex VertMain
75.                 #pragma fragment FragMain
76.             ENDHLSL
77.         }
78.     }
79. }

The effect (in the scene view) looks somewhat like the one in this post:
https://forum.unity.com/threads/doe...-although-the-whole-scene-stays-still.552787/

But only appears when I move the camera.

Any help is highly appreciated.

 

Screen Recording of the issue: